Yinyoo KZ ZSTX Earphones Wired with Microphone Hybrid 1BA+1DD in Ear Monitor Earbuds Balance Armature with Dynamic in-Ear Earphone Headphones HiFi…

The earphones sound great. Definitely not for people looking for bass heavy sound. They’re very comfortable to use for a long time and fit well even while exercising. The mic however is not the best but works perfectly fine for regular calls/video calls.

After using them for 4 months, the build quality seems good, the earphones show no sign of wear and look as good as new. The seller included an earphone case that helps even though it isn’t really well made.

All in all, a great budget buy for those looking for in-ear monitors on a budget.

So hears the thing… These earphones provided one of the most high fidelity audio experiences I’ve had, but one thing this earphones aren’t able to deliver is vibrating my eardrums with the bass punch of on ear headphones.

Honestly I wouldn’t expect that from an earphone, so if that is something you need then go for on or over ear, but I’m fine with not having that.

Now don’t get me wrong here and assume there is no bass.. you will here even sub bass frequency. This being my first iem ever have the widest frequency response all the way from 5hz to 18khz, which is insane. So you will hear bass but it won’t shake your eardrums.

Sound stage is great, I would say it can go up against the top leading audio brands like bose, beats or sony… I hate beats sound – I haven’t heard the most expensive model but the ones I heard disappointed. I have tried Bose’s most expensive on ear and Sennheiser lower end stuff and I would say this holds up great.

Now I did feel often times like the sound signature was changing but it was probably my ear because other times it felt normal. So maybe it’s just my ears being funny. On a frequency sweep test though I noticed the trebles did slightly go up at 12k -15k range than it was when I bought it.. but very few instruments go that high and in a way it’s good because those instruments woul be of low volume anyways

Buen producto, no es para oidos exigentes, para comensar en el mundo de inEars están muy bien.

Almost gave it a 2 star after listening to it for the first time. The out-of-the-box audio response is very uneven.

The high frequency response is very saturated with even the vocals sounding tinny and like the hissing of a snake.

Thankfully all of this goes away and the true quality of the iems are unleashed when you use an equalizer.

My recommendation would be to turn up the mids (500 – 4khz) and then turn down the highs (8k to 20khz), both by 5dB in a typical U shape.

You can improve the low freq gain(for bass) as much as you want as it responds incredibly well with minimal distortion.

Overall , a really well built pair of buds that are undoubtedly worth the money.

Sound quality is good. It’s a good product. But please do know that there is no noise cancellation. It is not a feature that’s provided. Inside the pack, you will also find a carrycase. Makes it convenient.